Kutheni i-Anti-Reverse Power Flow ingaphumeleli: Iingxaki eziqhelekileyo ze-Zero-Export kunye nezisombululo ezisebenzayo

Intshayelelo: Xa "Ukuthunyelwa Ngaphandle" Kungasebenzi Ephepheni Kodwa Kungaphumeleli Ngokwenyani

Iinkqubo ezininzi ze-PV zelanga zokuhlala zenziwe ngeakukho kuthunyelwa ngaphandle or ukuhamba kwamandla okubuyela umvauseto, kodwa ukufakwa kwamandla okungafunekiyo kwigridi kusenzeka. Oku kuhlala kubamangalisa abafaki kunye nabanini beenkqubo, ingakumbi xa iiparameter ze-inverter zibonakala zicwangciswe ngokuchanekileyo.

Kwinyani,ukuhamba kwamandla okuthintela umva akulona useto olunye okanye uphawu lwesixhoboNgumsebenzi wenqanaba lenkqubo oxhomekeke ekuchanekeni kokulinganisa, isantya sempendulo, ukuthembeka konxibelelwano, kunye noyilo lwengqiqo yolawulo. Xa nayiphi na inxalenye yale tyathanga ingaphelelanga, ukuhamba kwamandla okubuyela umva kusenokwenzeka.

Eli nqaku lichazakutheni iinkqubo zokuthumela ngaphandle zingaphumeleli kwiinkqubo zokwenyani, ichonga ezona zizathu zixhaphakileyo, kwaye ichaza izisombululo ezisebenzayo ezisetyenziswa kwiinkqubo ze-PV zokuhlala zanamhlanje.

Imibuzo Ebuzwa Rhoqo 1: Kutheni Ukubuyela Umva Kwamandla Kusenzeka Nokuba Akukho Kuthunyelwa Ngaphandle Kuvuliwe?

Enye yezona ngxaki zixhaphakileyo yileisantya sokuguquguquka komthwalo.

Imithwalo yasekhaya efana neenkqubo ze-HVAC, izifudumezi zamanzi, iitshaja ze-EV, kunye nezixhobo zasekhitshini zinokuvula okanye zicime kwimizuzwana embalwa. Ukuba i-inverter ixhomekeke kuphela kuqikelelo lwangaphakathi okanye kwisampulu ecothayo, isenokungaphenduli ngokukhawuleza ngokwaneleyo, ivumele ukuthunyelwa kwamandla okwethutyana.

Umda ophambili:

• Imisebenzi ye-inverter-only zero-export idla ngokuswela impendulo yexesha langempela evela kwindawo yoqhagamshelwano lwegridi (PCC).

Isisombululo esisebenzayo:

• Sebenzisa yangaphandle,umlinganiselo wamandla egridi ngexesha langempelaukuvala iluphu yokulawula.

Imibuzo Ebuzwa Rhoqo 2: Kutheni le nto le nkqubo ngamanye amaxesha inciphisa amandla elanga?

Ezinye iinkqubo zinciphisa ngamandla imveliso ye-PV ukuze kuthintelwe ukuthunyelwa kwamanye amazwe, nto leyo ebangela oku kulandelayo:

• Ukuziphatha kwamandla okungazinzanga

• Ukulahleka kwesizukulwana selanga

• Ukusetyenziswa kakubi kwamandla

Oku kwenzeka rhoqo xa ingqiqo yolawulo ingenazo iinkcukacha zamandla ezichanekileyo kwaye isebenzisa imida yokugcina izinto ukuze "ihlale ikhuselekile."

Unobangela weengcambu:

• Impendulo yamandla esezantsi okanye ebambezelekileyo

• Imida eqinileyo endaweni yohlengahlengiso olutshintshatshintshayo

Indlela engcono:

• Ukunciphisa amandla ashukumisayongokusekelwe kumlinganiselo oqhubekayo endaweni yemida emiselweyo.

Imibuzo Ebuzwa Rhoqo 3: Ngaba Ukulibaziseka koNxibelelwano Kungabangela Ukusilela koLawulo lokuLwa nokuBuya?

Ewe.Ukungafiki kwexesha kunye nokungazinzi konxibelelwanozidla ngokungahoywa izizathu zokungaphumeleli kokuhamba kombane ngokuchasene nokubuyela umva.

Ukuba idatha yamandla egridi ifikelela kwinkqubo yolawulo kancinci kakhulu, i-inverter isabela kwiimeko eziphelelwe lixesha. Oku kunokubangela ukushukuma, impendulo ebambezelekileyo, okanye ukuthunyelwa ngaphandle kwexesha elifutshane.

Imiba eqhelekileyo ibandakanya:

• Iinethiwekhi ze-WiFi ezingazinzanga

• Iilophu zolawulo ezixhomekeke kwilifu

• Uhlaziyo lwedatha olungaqhelekanga

Indlela ecetyiswayo yokwenza izinto:

• Sebenzisa iindlela zonxibelelwano zasekuhlaleni okanye ezikufutshane nexesha langempela ukuze ufumane impendulo enamandla nanini na xa kunokwenzeka.

Imibuzo Ebuzwa Rhoqo 4: Ngaba Indawo Yokufaka Iimitha Ayichaphazeli Ukusebenza Kokuthumela Ngaphandle Kwezinto?

Ngokuqinisekileyo.indawo yokufakelwa kwemitha yamandlakubaluleke kakhulu.

Ukuba imitha ayifakwangaindawo yokudibanisa okuqhelekileyo (i-PCC), inokulinganisa kuphela inxalenye yomthwalo okanye isizukulwana, nto leyo ekhokelela kwizigqibo zolawulo ezingalunganga.

Iimpazamo eziqhelekileyo:

• Imitha ifakiwe ngezantsi kweminye imithwalo

• Imitha yokulinganisa imveliso ye-inverter kuphela

• Ukuqhelaniswa kwe-CT okungalunganga

Indlela echanekileyo:

• Faka imitha kwindawo yokudibanisa igridi apho kunokulinganiswa khona ukungeniswa kunye nokuthunyelwa kwempahla iyonke.

Imibuzo Ebuzwa Rhoqo 5: Kutheni Ukulinganiselwa Kwamandla Angagungqiyo Kungathembekanga Kwizindlu Zokwenene

Ukunciphisa amandla angaguqukiyo kuthetha ukuba umthwalo uziphatha ngendlela eqikelelweyo. Enyanisweni:

• Imithwalo itshintsha ngendlela engalindelekanga

• Ukuveliswa kwelanga kuyatshintshatshintsha ngenxa yamafu

• Ukuziphatha komsebenzisi akunakulawulwa

Ngenxa yoko, imida engaguqukiyo ivumela ukuthunyelwa okufutshane okanye ithintele kakhulu imveliso ye-PV.

Ulawulo olutshintshayo, ngokuchaseneyo, isoloko ilungisa amandla ngokusekelwe kwiimeko zexesha langempela.

Ingakanani iMeter yamandla ehlakaniphile ebalulekileyo ekuhambeni kwamandla okuchasene nokubuyela umva?

Kwiinkqubo ezifunai-dynamicsulawulo lokuhamba kwamandla oluchasene nokubuyela umva,
Impendulo yamandla egridi yexesha langempela evela kwimitha yamandla ekrelekrele ibalulekile.

Imitha yamandla ekrelekrele yenza inkqubo ikwazi:

• Fumanisa ukungenisa nokuthumela ngaphandle kwangoko

• Bala inani lokulungiswa okufunekayo

• Gcina ukuhamba kwamandla egridi kufutshane no-zero ngaphandle kokunciphisa ngokungeyomfuneko

Ngaphandle kwale maleko yokulinganisa, ulawulo oluchasene nokubuyela umva luxhomekeke kuqikelelo kunokuba luxhomekeke kwiimeko zokwenyani zegridi.

Indima yePC321 ekusombululeni imiba yokuhamba kwamandla okuchasene nokubuyela umva

Kwiinkqubo ze-PV ezisebenzisekayo zokuhlala,Imitha yamandla ehlakaniphileyo ye-PC311isetyenziswa njengeisalathiso sokulinganisa kwi-PCC.

I-PC321 ibonelela:

• Ukulinganiswa ngokuchanekileyo ngexesha langempela kokungeniswa kunye nokuthunyelwa kwegridi

• Imijikelo yokuhlaziya ngokukhawuleza efanelekileyo kwiiluphu zolawulo eziguqukayo

• Unxibelelwano ngeI-WiFi, i-MQTT, okanye i-Zigbee

• Inkxaso yeiimfuno zempendulo yemizuzwana engaphantsi kwemibiniesetyenziswa kakhulu kulawulo lwe-PV lwezindlu

Ngokunikezela ngedatha yamandla egridi ethembekileyo, i-PC311 ivumela ii-inverters okanye iinkqubo zolawulo lwamandla ukuba zilawule imveliso ye-PV ngokuchanekileyo—zijongane nezizathu eziphambili zokungaphumeleli kokuthumela ngaphandle.

Okubalulekileyo kukuba, i-PC311 ayithathi indawo ye-inverter control logic. Endaweni yoko, iyasebenza.yenza ulawulo oluzinzileyo ngokubonelela ngedatha exhomekeke kwiinkqubo zolawulo.

Isifundo esibalulekileyo: Ukuhamba kwamandla okuchasene nokubuyela umva ngumngeni woyilo lwenkqubo

Uninzi lokusilela kokuhamba kombane okuchasene nokubuyela umva akubangelwa yihardware engasebenzi kakuhle.uyilo lwenkqubo olungaphelelanga—umlinganiselo ongekhoyo, unxibelelwano olulibazisekileyo, okanye ingqiqo yolawulo olungaguqukiyo esetyenziswa kwiindawo ezitshintshatshintshayo.

Ukuyila iinkqubo ezithembekileyo ezingathumeli ngaphandle kufuna:

• Ukulinganiswa kwamandla egridi ngexesha langempela

• Unxibelelwano olukhawulezayo noluzinzileyo

• Ingqiqo yolawulo oluvaliweyo

• Ukufakelwa ngokufanelekileyo kwi-PCC

Xa ezi zinto zilungelelanisiwe, ukuhamba kwamandla okumelana nokubuyela umva kuyaqikelelwa, kuzinze, kwaye kuhambelane nemithetho.

Inqaku Lokuvala Elinganyanzelekanga

Ukuqonda iinkqubo zelanga zasekhaya ezisebenza phantsi kwemiqathango yokuthumela ngaphandlekutheni ukungabikho kokuthumela ngaphandle okungaphumeleliyolinyathelo lokuqala lokwakha inkqubo esebenza ngokuthembekileyo phantsi kweemeko zokwenyani.